package day20170928;

public class Work1_3 {
    public static void main(String[] args) {
        //char ch='A';//正确
        //char ch='\u0020';//正确
        //char ch=88;//正确
        char ch = 'a';//错误
        // char ch="A";//错误
        System.out.println(ch);
    }
}
